EP2127793A1 - Cutting element and machining tool - Google Patents
Cutting element and machining tool Download PDFInfo
- Publication number
- EP2127793A1 EP2127793A1 EP08009796A EP08009796A EP2127793A1 EP 2127793 A1 EP2127793 A1 EP 2127793A1 EP 08009796 A EP08009796 A EP 08009796A EP 08009796 A EP08009796 A EP 08009796A EP 2127793 A1 EP2127793 A1 EP 2127793A1
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- European Patent Office
- Prior art keywords
- cutting element
- cutting
- milling tool
- seat
- tool
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- 238000003754 machining Methods 0.000 title description 3
- 238000003801 milling Methods 0.000 claims abstract description 58
- 239000002184 metal Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/08—Disc-type cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
- B23C5/2208—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts
- B23C5/2213—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts having a special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
- B23D61/06—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted in exchangeable arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/16—Supporting or bottom surfaces
- B23C2200/161—Supporting or bottom surfaces with projections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/16—Fixation of inserts or cutting bits in the tool
- B23C2210/168—Seats for cutting inserts, supports for replacable cutting bits
Definitions
- the invention relates to an exchangeable cutting element for a milling tool and a milling tool, in particular a side milling cutter tool, for milling or sawing metal blanks, in particular metal pipes or metal billets.
- Such a cutting element is from the AT 008 436 U1 the same patent applicant known.
- a detachable connection of the cutting elements by means of screws, in particular countersunk screws on the peripheral region of the body in a substantially radial direction in place of the previously known solder or clamp connections allows the use of any cutting geometries, and thus an extended scope, eg sawing of stainless steels. Higher service life is possible because, for example, if a cutting edge prematurely breaks out, only one cutting element needs to be changed.
- the screw fastening according to the invention is basically more robust than z. As the self-clamping of inserts used so far or die'Befest Trent by means transverse to the disk plane fastening screws. The disadvantage, however, is that it is possible with this tool design to attach the cutting element wrong, which can lead to problems during operation.
- the invention has for its object to provide a tool for machining of the generic type, in particular for milling method with high feed rates, which allows improved safety against the prior art tools.
- this is an exchangeable cutting element for a milling tool, in particular for a side milling cutter, for milling or sawing metal blanks, in particular metal pipes or metal billets, with a substantially prismatic or cuboidal basic shape and with at least one cutting edge, and with at least one Through hole for receiving a fastening means, wherein provided on at least one of the side milling cutter tool facing surfaces of the cutting element with respect to at least one of the three cutting element means planes non-symmetrical executed gradation, or is formed.
- the cutting element according to the invention with the gradation can be used in a corresponding shape and dimensions of the step section on a cutting element seat of the milling tool.
- This structural measure allows a clear positioning of the cutting element in the cutting element seat, whereby a faulty fastening of the element can be completely avoided.
- this measure ensures that the correct type of cutting element is always used for the operation of the milling tool. As a result, a stress-balanced use of the tool can be granted.
- a detachable connection of the cutting element according to the invention on the milling tool allows rapid replacement in case of wear or even failure of the cutting element.
- a preferred embodiment of the invention provides that the cutting element has two or more cutting edges, it can thus be turned over when worn and continue to be used. This requires a symmetry of the cutting element with respect to at least one median plane, which also in the design the gradation on the cutting element and the corresponding section on the milling tool is taken into account.
- Another conceivable variant of the invention provides for the placement of the gradation on the milling tool and not on the cutting element.
- the cutting element is provided with the corresponding cutout.
- the cutting element may have a lower and / or an end-side contact surface, which is in mutual contact with the cutting element seat of the milling tool, wherein the cutting element and the cutting element seat are designed positively on their mutual contact surfaces. This ensures a favorable transmission of the cutting forces.
- the gradation on the cutting element and the corresponding cutout on the cutting element seat of the milling tool can also be form-shaped in such a way that reliable support of the cutting element and optimum transmission of the cutting forces is ensured.
- the attachment of the cutting elements takes place at the edge region of the preferably disk-shaped base body of the milling tool in the tangential direction with respect to the circumferential direction of the main body disk, ie the cutting edge or the upper cutting surface assigned to the cutting edge is in essentially arranged in the tangential direction at the edge region of the disk-shaped base body.
- This tangential cutting element arrangement results in the highest possible stability against vibrations, even at higher chip strengths of the workpieces to be machined.
- the screw fastening according to the invention is basically more robust than z. As the self-clamping of inserts used so far or the attachment by means transverse to the disk plane fastening screws.
- the tool is designed as a disc cutter, and in particular designed as a disc cutter for sawing with different cutting shapes of the cutting elements.
- At least one type of cutting element may have a chip divider, the z. B. is formed by a running in the direction of rotation of the milling chip breaker groove.
- the chip breaker groove formed in or on the cutting surface plane is off-centered, in two different displacement directions, with the cutting elements sequentially secured to the main body alternately having chipbreaker grooves arranged in one and the other transfer direction, thereby providing a smoother tool run with reduced vibration can be achieved.
- a substantially L-shaped recessed seat in the main body of the tool with the one leg of the L-shaped seat forming seat support surface and with the other leg of the L-shaped seat forming seating surface for receiving the one in the essential prismatic or cuboidal basic shape having cutting elements acting cutting forces is formed.
- the cutting element may have a lower and / or an end-side contact surface in a preferred constructive design, which are in mutual contact with the seat support surface and / or with the seat bearing surface of the L-shaped seat, wherein the cutting element and the L-shaped seat at their mutual Contact surfaces are executed form-fitting.
- the milling tool is provided in a preferred embodiment of the cutting element seat with a shape and dimensions of the gradation of the cutting element adapted cutout for a clear attachment of the cutting element on the milling tool.
- the width of at least one part of the cutting element projects beyond the thickness of the disk-shaped main body of the milling tool in a preferred embodiment. This reduces the risk of possible jamming of the tool during operation and thus increases the service life.
- a setting of the cutting elements can be made on the milling tool, i. the cutting elements are alternately offset to the left and right in the cutting direction or twisted.
- a chip space may be present, which is formed by a round recess, which adjoins the cutting element seat, seen in the direction of movement after the cutting element.
- the diameter of the milling tool can be between 800 mm and 2400 mm, which opens up a wide range of applications. For example, sawing large blanks can be done efficiently and economically.
- the disk-shaped main body of the milling tool can be provided with recesses in a preferred embodiment variant. Furthermore, the thickness of the base body in the radial direction may be at least partially reduced, wherein web-shaped areas with constant thickness may be present.
- FIG. 1 illustrated preferred embodiment of the invention comprises a cutting element 1 for machining, in particular for milling and / or sawing method with high feed rates, with a substantially prismatic or cuboidal basic shape, with a cutting edge 3, and with a through hole 4 for receiving a countersunk screw. 5
- a gradation 6 is present, which does not extend over the entire length of the cutting element 1.
- On the workpiece-facing side of the cutting element 1 is a running in the circumferential direction of the milling tool 2 Spanteilernut 10 is formed.
- the chip divider groove 10 formed in or on the upper cutting surface plane is offset off-center, whereby a still calmer tool run with reduced vibration can be achieved.
- FIG. 2 shows the cutting element 1 from FIG. 1 but in perspective views for better clarity.
- FIG. 3 shows a section of a milling tool 2 with inserted cutting element 1 according to the invention according to an embodiment of the invention in front and top view, with a sectional view in the side view.
- FIG. 4 shows two perspective views of a section of a milling tool 2 with inventive cutting element 1 according to an embodiment of the invention, in mounted and disassembled representation.
- the cutting element 1 has at least one passage bore 4 for receiving the fastening means 5, wherein the fastening means 5 in all embodiments by a fastening screw is formed, which engages in a arranged on the edge region of the milling tool 2 threaded hole 9.
- a substantially L-shaped recessed cutting element seat 8 in the tool 2 is formed with a one leg of the L-shaped cutting element seat 8 forming seat support surface and with the other leg of the L-shaped cutting element seat 8 forming seat bearing surface for receiving the acting on the cutting elements 1 cutting forces.
- the milling tool 2 is provided on the cutting element seat 8 with a cutout 7 adapted to the shape and dimensions of the gradation 6 of the cutting element 1 for attachment of the cutting element 1 to the milling tool 2. In this way, a particularly good lateral stabilization of the cutting element 1 cutting element seat 8 is achieved.
- a chip space 11 is formed in the form of a round recess adjoining the cutting element seat 8, as seen in the direction of movement after the cutting element 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
Description
Die Erfindung betrifft ein auswechselbares Schneidelement für ein Fräswerkzeug und ein Fräswerkzeug, insbesondere ein Scheibenfräserwerkzeug, zum Fräsen bzw. Sägen von Metallrohlingen wie insbesondere Metallrohre oder Metallknüppel.The invention relates to an exchangeable cutting element for a milling tool and a milling tool, in particular a side milling cutter tool, for milling or sawing metal blanks, in particular metal pipes or metal billets.
Ein derartiges Schneidelement ist aus der
Ausgehend vom Stand der Technik gemäß der
Diese Aufgabe wird durch das im Anspruch 1 angegebene Schneidelement und das im Anspruch 7 angegebene Fräswerkzeug gelöst.This object is achieved by the specified in
Erfindungsgemäß handelt es sich hierbei um ein auswechselbares Schneidelement für ein Fräswerkzeug, insbesondere für ein Scheibenfräserwerkzeug, zum Fräsen bzw. Sägen von Metallrohlingen, wie insbesondere Metallrohre oder Metallknüppel, mit einer im wesentlichen prismatischen oder quaderförmigen Grundform und mit wenigstens einer Schneide, und mit wenigstens einer Durchtrittsbohrung zur Aufnahme eines Befestigungsmittels, wobei an wenigstens einer der dem Scheibenfräserwerkzeug zugewandten Flächen des Schneidelementes eine bezüglich wenigstens einer der drei Schneidelementsmittelebenen nichtsymmetrisch ausgeführte Abstufung vorgesehen, bzw. ausgeformt ist.According to the invention, this is an exchangeable cutting element for a milling tool, in particular for a side milling cutter, for milling or sawing metal blanks, in particular metal pipes or metal billets, with a substantially prismatic or cuboidal basic shape and with at least one cutting edge, and with at least one Through hole for receiving a fastening means, wherein provided on at least one of the side milling cutter tool facing surfaces of the cutting element with respect to at least one of the three cutting element means planes non-symmetrical executed gradation, or is formed.
Das erfindungsgemäße Schneidelement mit der Abstufung ist in einen an Form und Abmessungen der Abstufung entsprechenden Ausschnitt an einem Schneidelementsitz des Fräswerkzeuges einsetzbar. Diese konstruktive Maßnahme ermöglicht eine eindeutige Positionierung des Schneidelementes im Schneidelementsitz, wodurch ein fehlerhaftes Befestigen des Elementes gänzlich vermieden werden kann. Überdies ist durch diese Maßnahme sichergestellt, dass für den Betrieb des Fräswerkzeuges stets der richtige Typ von Schneidelementen zum Einsatz kommt. Dadurch kann eine beanspruchungsgerechtere Verwendung des Werkzeuges gewährt werden. Eine lösbare Verbindung des erfindungsgemäßen Schneidelementes am Fräswerkzeug ermöglicht einen raschen Austausch bei Verschleiß oder gar Versagen des Schneidelementes.The cutting element according to the invention with the gradation can be used in a corresponding shape and dimensions of the step section on a cutting element seat of the milling tool. This structural measure allows a clear positioning of the cutting element in the cutting element seat, whereby a faulty fastening of the element can be completely avoided. Moreover, this measure ensures that the correct type of cutting element is always used for the operation of the milling tool. As a result, a stress-balanced use of the tool can be granted. A detachable connection of the cutting element according to the invention on the milling tool allows rapid replacement in case of wear or even failure of the cutting element.
Eine bevorzugte Ausbildung der Erfindung sieht vor, dass das Schneidelement über zwei oder mehrere Schneidkanten verfügt, es kann somit bei Verschleiß gewendet und weiterbenutzt werden. Dies erfordert eine Symmetrie des Schneidelementes bezüglich wenigstens einer Mittelebene, was auch in der Gestaltung der Abstufung am Schneidelement und des korrespondierenden Ausschnitts am Fräswerkzeug berücksichtigt wird.A preferred embodiment of the invention provides that the cutting element has two or more cutting edges, it can thus be turned over when worn and continue to be used. This requires a symmetry of the cutting element with respect to at least one median plane, which also in the design the gradation on the cutting element and the corresponding section on the milling tool is taken into account.
Eine weitere denkbare Variante der Erfindung sieht die Platzierung der Abstufung am Fräswerkzeug vor und nicht am Schneidelement. Das Schneidelement ist dafür mit dem korrespondierenden Ausschnitt versehen.Another conceivable variant of the invention provides for the placement of the gradation on the milling tool and not on the cutting element. The cutting element is provided with the corresponding cutout.
In einer bevorzugten konstruktiven Ausgestaltung kann das Schneidelement eine untere und/oder eine stirnseitige Anlagefläche aufweisen, die mit der Schneidelementsitz des Fräswerkzeuges in gegenseitigem Kontakt steht, wobei das Schneidelement und der Schneidelementsitz an ihren gegenseitigen Anlageflächen formschlüssig ausgeführt sind. Dies sorgt für eine günstige Übertragung der Schnittkräfte. Die Abstufung am Schneidelement und der entsprechende Ausschnitt am Schneidelementsitz des Fräswerkzeuges können ebenfalls dergestalt formschlüssig'ausgeformt sein, dass eine sichere Abstützung des Schneidelementes und eine optimale Übertragung der Schnittkräfte gewährleistet ist.In a preferred structural embodiment, the cutting element may have a lower and / or an end-side contact surface, which is in mutual contact with the cutting element seat of the milling tool, wherein the cutting element and the cutting element seat are designed positively on their mutual contact surfaces. This ensures a favorable transmission of the cutting forces. The gradation on the cutting element and the corresponding cutout on the cutting element seat of the milling tool can also be form-shaped in such a way that reliable support of the cutting element and optimum transmission of the cutting forces is ensured.
Dem Prinzip der Erfindung folgend ist von Vorteil weiterhin vorgesehen, dass die Befestigung der Schneidelemente am Randbereich des vorzugsweise scheibenförmigen Grundkörpers des Freäswerkzeuges vermittels der Befestigungsschrauben in tangentialer Richtung bezüglich der Umfangsrichtung der Grundkörperscheibe erfolgt, d.h. die Schneide bzw. die der Schneide zugeordnete obere Schneidfläche ist im wesentlichen in tangentialer Richtung am Randbereich des scheibenförmigen Grundkörpers angeordnet. Durch diese tangentiale Schneidelementanordnung ergibt ergibt sich eine höchstmögliche Stabilität gegenüber Vibrationen, selbst bei höheren Spanstärken der zu bearbeitenden Werkstücke. Die Schraubenbefestigung nach der Erfindung ist grundsätzlich robuster als z. B. die bislang verwendete Selbstklemmung von Wendeplatten oder die Befestigung mittels quer zur Scheibenebene verlaufenden Befestigungsschrauben. Hierbei ist es insbesondere bei Fräs- und bei Sägewerkzeugen vorteilhaft, um z. B. die volle Bewegungsbahn eines Fräskopfes oder Sägekopfes möglichst dicht über der Werkstückoberfläche ausnutzen zu können, das Schneidelement beispielsweise mit Hilfe einer Senkschraube in den vorgenannten Sitzen, die entsprechende Auflage- bzw. Anlageflächen für die Aufnahme der Schnittkräfte aufweisen, zu befestigen. Eine lösbare Verbindung der Schneidelemente mittels Schrauben, insbesondere Senkschrauben am Umfangsbereich des Fräswerkzeuges in vorzugsweise radialer Richtung ermöglicht den Einsatz beliebiger Schneidengeometrien, und damit einen deutlich größeren Anwendungsbereich, z.B. Sägen auch von rostfreien Stählen. Es sind höhere Standzeiten möglich, denn etwa bei vorzeitigem Ausbruch einer Schneide muss nur ein Schneidelement gewechselt werden. Außerdem werden durch diese besonderen konstruktiven Maßnahmen an den erfindungsgemäßen Werkzeugen die bislang erkennbare Neigung von Scheibenfräsern zu schädlichen Vibrationen wirksam vermindert bzw. gedämpft. Bei einer besonders bevorzugten Ausführung der Erfindung ist das Werkzeug als Scheibenfräser ausgeführt, und insbesondere als Scheibenfräser zum Sägen mit unterschiedlichen Schneidformen der Schneidelemente ausgebildet.Following the principle of the invention, it is furthermore advantageously provided that the attachment of the cutting elements takes place at the edge region of the preferably disk-shaped base body of the milling tool in the tangential direction with respect to the circumferential direction of the main body disk, ie the cutting edge or the upper cutting surface assigned to the cutting edge is in essentially arranged in the tangential direction at the edge region of the disk-shaped base body. This tangential cutting element arrangement results in the highest possible stability against vibrations, even at higher chip strengths of the workpieces to be machined. The screw fastening according to the invention is basically more robust than z. As the self-clamping of inserts used so far or the attachment by means transverse to the disk plane fastening screws. This is especially in milling and in sawing tools advantageous to z. B. the full trajectory of a milling head or saw head as close as possible to exploit the workpiece surface, the cutting element, for example, with the aid of a countersunk screw in the aforementioned seats, the corresponding support or contact surfaces for receiving the cutting forces to attach. A releasable connection of the cutting elements by means of screws, in particular countersunk screws on the peripheral region of the milling tool in a preferably radial direction allows the use of any cutting geometries, and thus a much wider range of applications, such as sawing of stainless steels. Higher service life is possible because, for example, if a cutting edge prematurely breaks out, only one cutting element needs to be changed. In addition, the hitherto recognizable tendency of disc cutters to harmful vibrations are effectively reduced or damped by these special design measures on the tools according to the invention. In a particularly preferred embodiment of the invention, the tool is designed as a disc cutter, and in particular designed as a disc cutter for sawing with different cutting shapes of the cutting elements.
Darüber hinaus kann zumindest ein Schneidelementtyp einen Spanteiler aufweisen, der z. B. durch eine in Umlaufrichtung des Fräswerkzeugs verlaufende Spanteilernut ausgebildet ist. Vorzugsweise ist die in bzw. auf der Schneidflächenebene ausgebildete Spanteilernut aussermittig versetzt angeordnet, und zwar in zwei unterschiedlichen Versetzungsrichtungen, wobei die am Grundkörper aufeinanderfolgend befestigten Schneidelemente wechselweise eine in der einen und in der anderen Versetzungsrichtung angeordnete Spanteilernuten aufweisen, wodurch ein ruhigerer Werkzeuglauf mit verringerter Vibration erreicht werden kann.In addition, at least one type of cutting element may have a chip divider, the z. B. is formed by a running in the direction of rotation of the milling chip breaker groove. Preferably, the chip breaker groove formed in or on the cutting surface plane is off-centered, in two different displacement directions, with the cutting elements sequentially secured to the main body alternately having chipbreaker grooves arranged in one and the other transfer direction, thereby providing a smoother tool run with reduced vibration can be achieved.
Bei einer bevorzugten Ausbildung der Erfindung, bei der auch eine besonders gute seitliche Stabilisierung des Schneidelementes im Schneidelementsitz erreicht wird, ist vorgesehen, dass am Randbereich des scheibenförmigen Grundkörpers ein im wesentlichen L-förmig ausgesparter Sitz im Grundkörper des Werkzeuges mit einer den einen Schenkel des L-förmigen Sitzes bildenden Sitzauflagefläche und mit einer den anderen Schenkel des L-förmigen Sitzes bildenden Sitzanlagefläche zur Aufnahme der auf die eine im wesentlichen prismatische oder quaderförmige Grundform aufweisenden Schneidelemente wirkenden Schnittkräfte ausgebildet ist. Hierbei kann das Schneidelement in bevorzugter kontruktiver Ausbildung eine untere und/oder eine stirnseitige Anlagefläche aufweisen, die mit der Sitzauflagefläche und/oder mit der Sitzanlagefläche des L-förmigen Sitzes in gegenseitigem Kontakt stehen, wobei das Schneidelement und der L-förmige Sitz an ihren gegenseitigen Anlageflächen formschlüssig ausgeführt sind.In a preferred embodiment of the invention, in which a particularly good lateral stabilization of the cutting element in the cutting element seat is achieved, it is provided that that at the edge region of the disc-shaped base body a substantially L-shaped recessed seat in the main body of the tool with the one leg of the L-shaped seat forming seat support surface and with the other leg of the L-shaped seat forming seating surface for receiving the one in the essential prismatic or cuboidal basic shape having cutting elements acting cutting forces is formed. In this case, the cutting element may have a lower and / or an end-side contact surface in a preferred constructive design, which are in mutual contact with the seat support surface and / or with the seat bearing surface of the L-shaped seat, wherein the cutting element and the L-shaped seat at their mutual Contact surfaces are executed form-fitting.
Das Fräswerkzeug ist in bevorzugter Ausgestaltung am Schneidelementsitz mit einem an Form und Abmessungen der Abstufung des Schneidelementes angepassten Ausschnitt versehen für eine eindeutige Befestigung des Schneidelementes am Fräswerkzeug.The milling tool is provided in a preferred embodiment of the cutting element seat with a shape and dimensions of the gradation of the cutting element adapted cutout for a clear attachment of the cutting element on the milling tool.
Die Breite wenigstens eines Teiles des Schneidelementes überragt in bevorzugter Ausbildung die Dicke des scheibenförmigen Grundkörpers des Fräswerkzeug. Dies verringert die Gefahr eines eventuellen Klemmens des Werkzeuges im Betrieb und erhöht somit die Lebensdauer. Alternativ dazu oder auch zusätzlich kann eine Schränkung der Schneidelemente am Fräswerkzeug erfolgen, d.h. die Schneidelemente sind in Schnittrichtung abwechselnd nach links und rechts versetzt oder verdreht.The width of at least one part of the cutting element projects beyond the thickness of the disk-shaped main body of the milling tool in a preferred embodiment. This reduces the risk of possible jamming of the tool during operation and thus increases the service life. Alternatively or additionally, a setting of the cutting elements can be made on the milling tool, i. the cutting elements are alternately offset to the left and right in the cutting direction or twisted.
Im Randbereich des Fräswerkzeuges kann in einer bevorzugten Weiterbildung der Erfindung ein Spanraum vorhanden sein, der durch eine runde Aussparung gebildet wird, die an den Schneidelementsitz anschließt, in Bewegungsrichtung gesehen nach dem Schneidelement.In the edge region of the milling tool, in a preferred embodiment of the invention, a chip space may be present, which is formed by a round recess, which adjoins the cutting element seat, seen in the direction of movement after the cutting element.
Der Durchmesser des Fräswerkzeuges kann je nach Einsatzzweck zwischen 800 mm und 2400 mm liegen, wodurch ein breites Anwendungsgebiet erschlossen wird. So kann beispilesweise ein Sägen großer Rohlinge effizient und wirtschaftlich erfolgen.Depending on the intended use, the diameter of the milling tool can be between 800 mm and 2400 mm, which opens up a wide range of applications. For example, sawing large blanks can be done efficiently and economically.
Der scheibenförmige Grundkörper des Fräswerkzeuges kann in einer bevorzugten Ausgestaltungsvariante mit Aussparungen versehen sein. Weiters kann die Dicke des Grundkörpers in radialer Richtung wenigstens abschnittsweise verringert sein, wobei auch stegförmige Bereiche mit gleichbleibender Dicke vorhanden sein können. Durch diese Maßnahmen ist, insbesondere bei großem Werkzeugdurchmesser, eine Reduktion der Masse erzielbar, überdies läßt sich eine Erhöhung der Steifigkeit des Werkzeuges bewerkstelligen.The disk-shaped main body of the milling tool can be provided with recesses in a preferred embodiment variant. Furthermore, the thickness of the base body in the radial direction may be at least partially reduced, wherein web-shaped areas with constant thickness may be present. By these measures, in particular with a large tool diameter, a reduction of the mass can be achieved, moreover, an increase in the rigidity of the tool can be accomplished.
Weitere Vorteile, Zweckmäßigkeiten und Weiterbildungen der Erfindung ergeben sich aus den weiteren Unteransprüchen.Further advantages, expediencies and developments of the invention will become apparent from the other dependent claims.
Weitere Einzelheiten ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnungen. Es zeigt:
- Fig. 1
- Ein Ausführungsbeispiel eines erfindungsgemäßen Schneidelementes in Vorder-, Drauf- und Seitenansicht;
- Fig. 2
- Vier perspektivische Ansichten eines Schneidelementes mit Spanteilernut nach einem Ausführungsbeispiel der Erfindung;
- Fig. 3
- Ausschnitt eines Fräswerkzeuges mit eingesetztem erfindungsgemäßen Schneidelement nach einem Ausführungsbeispiel der Erfindung Vorder- und Draufsicht, mit einer Schnittdarstellung in der Seitenansicht; und
- Fig. 4
- Zwei perspektivische Ansichten eines Ausschnitts eines Fräswerkzeuges mit erfindungsgemäßen Schneidelement nach einem Ausführungsbeispiel der Erfindung, in montierter und in zerlegter Darstellung.
- Fig. 1
- An embodiment of a cutting element according to the invention in front, top and side view;
- Fig. 2
- Four perspective views of a cutting element with chip breaker groove according to an embodiment of the invention;
- Fig. 3
- Section of a milling tool with inserted cutting element according to the invention according to an embodiment of the invention front and top view, with a sectional view in side view; and
- Fig. 4
- Two perspective views of a section of a milling cutter with cutting element according to the invention according to an embodiment of the invention, in mounted and disassembled representation.
Das in
Claims (10)
dadurch gekennzeichnet dass die Befestigung des Schneidelementes (1) am Fräswerkzeug (2) durch das Befestigungsmittel (5) erfolgt, welches eine Befestigungsschraube ist, die in eine im wesentlichen in radialer Richtung am Randbereich des, vorzugsweise scheibenförmigen, Fräswerkzeuges (2) angeordnete Gewindebohrung (9) eingreift.Cutting element according to one of the preceding claims,
characterized in that the attachment of the cutting element (1) on the milling tool (2) by the fastening means (5), which is a fastening screw which in a substantially radially on the edge region of, preferably disc-shaped, milling tool (2) arranged threaded bore ( 9) engages.
dadurch gekennzeichnet, das es zum Sägen mit unterschiedlichen Formen der Schneidelemente (1) ausgebildet ist.Cutting element according to one of the preceding claims,
characterized in that it is designed for sawing with different shapes of the cutting elements (1).
dadurch gekennzeichnet, dass ein Spanteiler vorhanden ist,
der im wesentlichen durch eine in Umlaufrichtung des Fräswerkzeugs (2) verlaufende Spanteilernut (10) ausgebildet ist.Cutting element according to one of the preceding claims,
characterized in that a chip divider is present,
which is formed substantially by a direction in the circumferential direction of the milling tool (2) extending chip breaker groove (10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08009796A EP2127793A1 (en) | 2008-05-29 | 2008-05-29 | Cutting element and machining tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08009796A EP2127793A1 (en) | 2008-05-29 | 2008-05-29 | Cutting element and machining tool |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2127793A1 true EP2127793A1 (en) | 2009-12-02 |
Family
ID=39816914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08009796A Withdrawn EP2127793A1 (en) | 2008-05-29 | 2008-05-29 | Cutting element and machining tool |
Country Status (1)
Country | Link |
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EP (1) | EP2127793A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2401106A1 (en) * | 2009-01-22 | 2012-01-04 | Linsinger Maschinenbau GmbH | Side milling cutter tool and cutting element |
WO2012094794A1 (en) * | 2011-01-10 | 2012-07-19 | Li Shiqing | Composite milling cutter |
US20130266385A1 (en) * | 2012-04-10 | 2013-10-10 | Vargus Ltd. | Cutting Insert, a Tool Holder, and Tool for Forming Heavy Duty Threads |
DE102015121058A1 (en) * | 2015-12-03 | 2017-06-08 | Gebr. Lennartz Gmbh & Co. Kg | Disk tool and cutting insert for it |
US20190232394A1 (en) * | 2016-10-05 | 2019-08-01 | Sandvik Intellectual Property Ab | Face milling tool and a tangential cutting insert therefore |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1253989B1 (en) * | 2000-02-12 | 2003-10-29 | Sandvik AB | Cutting insert and corresponding milling cutter |
DE102004001970A1 (en) * | 2004-01-13 | 2005-08-11 | Komet Group Holding Gmbh | Machine tool and base and cutting plate for a machine tool |
US20060120812A1 (en) * | 2004-12-07 | 2006-06-08 | Iscar Ltd. | Cutting tool and cutting insert therefor |
AT8436U1 (en) | 2005-04-26 | 2006-08-15 | Linsinger Maschb Gmbh | DISC MILLING TOOL AND CUTTING ELEMENT |
US20070248425A1 (en) * | 2006-04-20 | 2007-10-25 | Sandvik Intellectual Property Ab | Tool and a cutting insert for chip removing machining |
EP1715975B1 (en) * | 2004-02-16 | 2008-05-07 | CERATIZIT Austria Gesellschaft m.b.H. | High-speed milling cutter |
-
2008
- 2008-05-29 EP EP08009796A patent/EP2127793A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1253989B1 (en) * | 2000-02-12 | 2003-10-29 | Sandvik AB | Cutting insert and corresponding milling cutter |
DE102004001970A1 (en) * | 2004-01-13 | 2005-08-11 | Komet Group Holding Gmbh | Machine tool and base and cutting plate for a machine tool |
EP1715975B1 (en) * | 2004-02-16 | 2008-05-07 | CERATIZIT Austria Gesellschaft m.b.H. | High-speed milling cutter |
US20060120812A1 (en) * | 2004-12-07 | 2006-06-08 | Iscar Ltd. | Cutting tool and cutting insert therefor |
AT8436U1 (en) | 2005-04-26 | 2006-08-15 | Linsinger Maschb Gmbh | DISC MILLING TOOL AND CUTTING ELEMENT |
US20070248425A1 (en) * | 2006-04-20 | 2007-10-25 | Sandvik Intellectual Property Ab | Tool and a cutting insert for chip removing machining |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2401106A1 (en) * | 2009-01-22 | 2012-01-04 | Linsinger Maschinenbau GmbH | Side milling cutter tool and cutting element |
WO2012094794A1 (en) * | 2011-01-10 | 2012-07-19 | Li Shiqing | Composite milling cutter |
US20130266385A1 (en) * | 2012-04-10 | 2013-10-10 | Vargus Ltd. | Cutting Insert, a Tool Holder, and Tool for Forming Heavy Duty Threads |
DE102015121058A1 (en) * | 2015-12-03 | 2017-06-08 | Gebr. Lennartz Gmbh & Co. Kg | Disk tool and cutting insert for it |
US20190232394A1 (en) * | 2016-10-05 | 2019-08-01 | Sandvik Intellectual Property Ab | Face milling tool and a tangential cutting insert therefore |
US11045885B2 (en) * | 2016-10-05 | 2021-06-29 | Sandvik Intellectual Property Ab | Face milling tool and a tangential cutting insert therefore |
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